Dust-separator.



v H. A. THUNEIVIANt LUST SEPARATOR.

APPLICATION FILED FEB.18, i916.

Patented Feb. 13, 1917 2 SHEETS-SHEET l.

H. A. THUNEIVIAN.

DUST SEPARATOR. APPLICATION FILED FEB. I8, 1915.

Patented Feb. 13, 1917 2 SHEETS-SHEET 2` as Parana @FFME HARRY A. THUNEMAN, or sT. LOUIsMISSOURI, `AssIefNoIz To WILLIAMS PATENT CRUsHER AND PULVERIZEI; COMPANY, OF sT. LoUIs, MISSOURI, A CORPORATION F MISSOURI.

` `To all whom t may concern-.2

Be it known that I', HARRY THUNMAN, a citizen of the United States, A residing atcity of St. Louis, State of lMissouri,-ha've invented a certain new and useful Improve- Vment in Dust-Separators, of which the following is a full, clear,-and exact description, such as will 'enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings, forming part ofithis specification, in whic Figure 1 is a vertical sectional view of my improved dust separator.

Fig. 2 is a sectional view on line 2-2 of Fig. 1. l y

Fig. 3 is a sectional view on line 3-3 of i of 'Fig.'1.

"F ig. t is a detail view of the adjustable cone.

^ Fig. 5 is a vertical sectional view of a` modified form of dust separator.

i i Fig. 6 is a cross sectional vies7 on line 6-6.

. Fig.- 7 is a. detail' view of the ratchet.4 This invention relates to a new and useful improvement in dustl separators, the Object being toq provide a novel means of adjust@ ment -for theseveral adjustable parts of the apparatus.

In the drawings 1 indicates an inlet pipe whose upper end te'sescopes into an adjustable section 1a having outwardly flared portions in which latter are arranged curved blades 2. 3 is the lower portion of the separator casing containing an inclined flange 4 -which is spaced apart from the -fiaring upper end of the inlet pipe and Overwhi'ch flaring upper end theheavierr'paticles of 'y material/willfall by gravity into the lower porti/6h 3 .of the separating chamber from which flower portion'leads adischarge spout 5. 1b are'rods secured to the flanged portion of the adjustable section la, with whichl coperate nuts 1c inbrackets 1d secured on the section 3. vThe purpose of thus providing some means for adjusting the flared section of' the .inlet pipe, to which the blades are secured, is to vary the sizeof the tailings discharge and in this manner I am enlabled'to regulate the size of the tailings. .6 indicates the walls of the upper portion of the separating chamber to which aresecured bars 7 and 8. To the bar 7 is secured .a bracket 9 constituting a mounting for a 'miter gear 10 mounted on the inner end of DUSTHSEBARATOR.

' speicativon df Leiters Patent.. Paten-ted Feb, 13, 19m/ 'Application le'il February v18, 1916. lSrial'Nol 79,057.

the rod 11 having l'a crank handle 12 at its outer end. This miter gear `meshes With `a` 'tension 15a, see Fig. 4, the purpose of which is to' deflect the currents outwardly, and upwardlyas they issure from the curved blades.

By adjusting the cap piece upwardly a certain percentage of the a1r mais7 be permitted to passint'o'the separating chamberafter itxhas passedbeyond the curved blades 2.

lThe cap piece is preferably provided with means such as eyes 2a on wings 2, through which slide rods 15b on the cone, whereby said cap 'may move vertically but is prevented fr'om rotating. The bar 8, before referred to, supports a similar hand-operated miter gear construction whereby a threaded rod 15 may berotated to adjust the fiared lower end 16 of the exit pipe 17 and thereby regulate the size of the expansion chamber in which the separation is effected. Suitable means is provided, such as a cross bar 19, passing throughslots in the pipe'17, to prevent the rotation of said pipe while per` mitting its vertical movement. Of ycourse the larger the expansion chamber, the finerl the particles of. dust which escape through the eXit pipe.

In Figs. 5, 6,'l and 7, I have shown a modified form of dust separator, in which the cone 15a is adjusted vertically by means of a .rack 14;'el coperating with-pinion 98L mounted on the rod 10a.v There is a ratchet wheel 10b on' the end of the rod cooperating with. pawl 10v and having a handle 10d whereby the same may -be rotated. By this means the cone may be-quickly adjusted.-

In Fig. 5 I have also shown means for quickly adjusting the hood at the lower end y idle sprocketv wheel 23 and being connected to cross rod 24 in the hood. A turn-buckle 25 is arranged in the length of the chain to take up the slack. The hood in this instance is mounted upon the lower section of a. series of telescoping pipe sections 26, 27,

and 28, the Object of these being toy enable` ication shown in Fig. saves head space and thereby reduces the height of the separator. Having thus descr1bed my invention, what i I claiin is:

1. A dust separator comprising a separating chamber, an inlet pipe leading there- ,e

into. curved blades at the upper end of said inlet p1pe, and an adjustable cap fitting over said curved blades, and provided w1th a downwardly extending cone-like projection which in its lower-most position entends down into the blades so as to deflect the air outwardly before 1t leaves the influence of 'said blades. j

2. A. dust separator co1npr1s1ng a separating chamber, an inlet pipe leading thereinto, a flanged cone adjustably mounted on the inner end of said inlet pipe, means for adjusting said cone so as to carry the space between the outer edge of said cone and its Vcooperating wall, through which space the tailings pass, andineans carried by said adjustable cone for imparting a whirling Inoton to the dust laden air.

3. A dust separator comprising a casing, an inlet pipe leading into the-lower portion thereof, a flanged cone section mounted on said inlet pipe whereby the outer edge of said cone section may be adjusted with respect-to a wall of said casing with which it coperates thereby regulating the'di-scharge opening for the tailings, means for adjusting said cone Section, a series of blades carried by said adjustable lsection for imparting a vwhirling motion to the incoming dust laden air whereby the tailings are forced over the edge of said cone section, and a discharge pipe for the fines, said discharge pipe having a flared lower end 'extending nearly to the walls of the casing, and means jor adjusting said discharge pipe within the casing whereby the size of the expansion chamber formed' by the casing may be regulated. i y j In testimony whereof I hereunto allEiX my l signature this 16th day of February, 1916.

HARRY yA. THUNEMAN. 

